题干

A、B、C、D、E、F及甲、乙均为初中化学常见物质,请回答下列问题:

(1)甲为氧化物,能与溶液A反应得到黄色溶液,则甲的化学式为____ .

(2)乙为厨房中常用的调味品,可由A、B两种溶液发生中和反应得到,则A与B反应的化学方程式为 ____  .

(3)固体C常用于改良酸性土壤,且C与D反应可得到B,该反应属于基本类型中的____ ,其中D的化学式为____  .指出D的一种用途____ .

(4)已知上述物质间存在如图所示的关系(“→”表示转化关系;“﹣”表示反应关系),其中E与F的物质类别相同,则E的化学式为____ .F与C反应的化学方程式为____ .

上一题 下一题 0.0难度 选择题 更新时间:2018-11-07 12:38:59

答案(点此获取答案解析)

Fe2O3,NaOH+HCl=NaCl+H2O,\u590d\u5206\u89e3\u53cd\u5e94,Na2CO3,\u5236\u6d17\u6da4\u5242,H2O,Ca\uff08OH\uff092+CO2=CaCO3\u2193+H2<

同类题4

阅读理解

    If Frida Kahlo(1907-1954) is today one of the best-known and most popular figures of 20th-century, Mexican art, it is undoubtedly because of her personality and the originality(独创性)of a body of works. Her work is, above all, the expression of a real life-a tragic and stormy life, one that challenged all conventions. The mere mention of her name excites enthusiasm and admiration, but her work is rarely exhibited, and has not been shown in France for fifteen years. The selection to go on show at the Musee de L'Orangerie includes major works by the artist, with masterpieces from the Museo Dolores Olmedo.

    The life and work of Frida Kahlo cannot be separated from those of her companion Diego Rivera(1886-1957). Together they became figures of legend, and both have a place in the pantheon of 20th-century Mexican artists. Famous for his large wall paintings, Rivera's easel paintings, drawings and prints, which form a large part of his artistic production, are less well-known to the public in Europe. The exhibition aims to trace his artistic career from the early Cubist images, revealing his links with the Paris artists whose works are a key element in the Orangerie collections, to the paintings that established him as the founder of the 20th-century school of Mexican art. His travels throughout Europe influenced his vision and his skills without ever distancing him from his roots, thus confirming his place in history as the founder of the nationalist school.

    The exhibition devoted to the legendary couple Diego Rivera and Frida Kahlo presents their works together, as if to confirm the impossibility of their divorce that was in fact finalized(定下来)but reconsidered after just one year apart. It also gives us a better view of their respective artistic worlds, so different and yet so complementary(互补的), through the deep-rooted attachment they shared to their country.